Home / 15,707.02-21,662.64-10,402.30

Finding the Fourth Proportional to 15,707.02, 21,662.64 and 10,402.30

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Solution

The fourth proportional to 15,707.02, 21,662.64 and 10,402.30 is: 14,346.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,707.02 : 21,662.64 = 10,402.30 : x
  2. Step 2: Convert to fraction form
    15,707.02/21,662.64 = 10,402.30/x
  3. Step 3: Cross multiply
    15,707.02x = 21,662.64 × 10,402.30
  4. Step 4: Simplify right side
    15,707.02x = 225,341,280.07
  5. Step 5: Solve for x
    x = 225,341,280.07/15,707.02
  6. Step 6: Final answer
    x = 14,346.53

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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.