Home / 10,887.48-15,032.14-7,307.80

Finding the Fourth Proportional to 10,887.48, 15,032.14 and 7,307.80

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Solution

The fourth proportional to 10,887.48, 15,032.14 and 7,307.80 is: 10,089.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.48 : 15,032.14 = 7,307.80 : x
  2. Step 2: Convert to fraction form
    10,887.48/15,032.14 = 7,307.80/x
  3. Step 3: Cross multiply
    10,887.48x = 15,032.14 × 7,307.80
  4. Step 4: Simplify right side
    10,887.48x = 109,851,872.69
  5. Step 5: Solve for x
    x = 109,851,872.69/10,887.48
  6. Step 6: Final answer
    x = 10,089.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.