Home / 15,007.02-20,709.60-8,292.90

Finding the Fourth Proportional to 15,007.02, 20,709.60 and 8,292.90

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Solution

The fourth proportional to 15,007.02, 20,709.60 and 8,292.90 is: 11,444.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,007.02 : 20,709.60 = 8,292.90 : x
  2. Step 2: Convert to fraction form
    15,007.02/20,709.60 = 8,292.90/x
  3. Step 3: Cross multiply
    15,007.02x = 20,709.60 × 8,292.90
  4. Step 4: Simplify right side
    15,007.02x = 171,742,641.84
  5. Step 5: Solve for x
    x = 171,742,641.84/15,007.02
  6. Step 6: Final answer
    x = 11,444.15

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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.