Home / 9,087.20-12,748-9,087.20

Finding the Fourth Proportional to 9,087.20, 12,748 and 9,087.20

Calculator

Solution

The fourth proportional to 9,087.20, 12,748 and 9,087.20 is: 12,748

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,087.20 : 12,748 = 9,087.20 : x
  2. Step 2: Convert to fraction form
    9,087.20/12,748 = 9,087.20/x
  3. Step 3: Cross multiply
    9,087.20x = 12,748 × 9,087.20
  4. Step 4: Simplify right side
    9,087.20x = 115,843,625.60
  5. Step 5: Solve for x
    x = 115,843,625.60/9,087.20
  6. Step 6: Final answer
    x = 12,748

Related Problems

Find fourth proportional to 4,543.60, 6,374 and 4,543.60
Half scale
Find fourth proportional to 18,174.40, 25,496 and 18,174.40
Double scale
Find fourth proportional to 9,088.20, 12,749.40 and 9,088.20
Similar ratio
Find fourth proportional to 13,630.80, 19,122 and 13,630.80
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.