Home / 7,870.48-11,805.72-4,786

Finding the Fourth Proportional to 7,870.48, 11,805.72 and 4,786

Calculator

Solution

The fourth proportional to 7,870.48, 11,805.72 and 4,786 is: 7,179

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,870.48 : 11,805.72 = 4,786 : x
  2. Step 2: Convert to fraction form
    7,870.48/11,805.72 = 4,786/x
  3. Step 3: Cross multiply
    7,870.48x = 11,805.72 × 4,786
  4. Step 4: Simplify right side
    7,870.48x = 56,502,175.92
  5. Step 5: Solve for x
    x = 56,502,175.92/7,870.48
  6. Step 6: Final answer
    x = 7,179

Related Problems

Find fourth proportional to 3,935.24, 5,902.86 and 2,393
Half scale
Find fourth proportional to 15,740.96, 23,611.44 and 9,572
Double scale
Find fourth proportional to 7,871.48, 11,807.22 and 4,787
Similar ratio
Find fourth proportional to 11,805.72, 17,708.58 and 7,179
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.