Home / 13,649.02-18,834.10-7,680.53

Finding the Fourth Proportional to 13,649.02, 18,834.10 and 7,680.53

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Solution

The fourth proportional to 13,649.02, 18,834.10 and 7,680.53 is: 10,598.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,649.02 : 18,834.10 = 7,680.53 : x
  2. Step 2: Convert to fraction form
    13,649.02/18,834.10 = 7,680.53/x
  3. Step 3: Cross multiply
    13,649.02x = 18,834.10 × 7,680.53
  4. Step 4: Simplify right side
    13,649.02x = 144,655,897.96
  5. Step 5: Solve for x
    x = 144,655,897.96/13,649.02
  6. Step 6: Final answer
    x = 10,598.26

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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.