Home / 15,041.02-20,743.14-9,730.30

Finding the Fourth Proportional to 15,041.02, 20,743.14 and 9,730.30

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Solution

The fourth proportional to 15,041.02, 20,743.14 and 9,730.30 is: 13,419.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,041.02 : 20,743.14 = 9,730.30 : x
  2. Step 2: Convert to fraction form
    15,041.02/20,743.14 = 9,730.30/x
  3. Step 3: Cross multiply
    15,041.02x = 20,743.14 × 9,730.30
  4. Step 4: Simplify right side
    15,041.02x = 201,836,975.14
  5. Step 5: Solve for x
    x = 201,836,975.14/15,041.02
  6. Step 6: Final answer
    x = 13,419.10

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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.