Home / 13,670.32-18,864.56-7,703.24

Finding the Fourth Proportional to 13,670.32, 18,864.56 and 7,703.24

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Solution

The fourth proportional to 13,670.32, 18,864.56 and 7,703.24 is: 10,630.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,670.32 : 18,864.56 = 7,703.24 : x
  2. Step 2: Convert to fraction form
    13,670.32/18,864.56 = 7,703.24/x
  3. Step 3: Cross multiply
    13,670.32x = 18,864.56 × 7,703.24
  4. Step 4: Simplify right side
    13,670.32x = 145,318,233.17
  5. Step 5: Solve for x
    x = 145,318,233.17/13,670.32
  6. Step 6: Final answer
    x = 10,630.20

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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.