Home / 19,158.91-28,714-8,617.66

Finding the Fourth Proportional to 19,158.91, 28,714 and 8,617.66

Calculator

Solution

The fourth proportional to 19,158.91, 28,714 and 8,617.66 is: 12,915.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,158.91 : 28,714 = 8,617.66 : x
  2. Step 2: Convert to fraction form
    19,158.91/28,714 = 8,617.66/x
  3. Step 3: Cross multiply
    19,158.91x = 28,714 × 8,617.66
  4. Step 4: Simplify right side
    19,158.91x = 247,447,489.24
  5. Step 5: Solve for x
    x = 247,447,489.24/19,158.91
  6. Step 6: Final answer
    x = 12,915.53

Related Problems

Find fourth proportional to 9,579.46, 14,357 and 4,308.83
Half scale
Find fourth proportional to 38,317.82, 57,428 and 17,235.32
Double scale
Find fourth proportional to 19,159.91, 28,715.50 and 8,618.66
Similar ratio
Find fourth proportional to 28,738.37, 43,071 and 12,926.49
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.