Home / 15,343.02-21,170.16-9,054.18

Finding the Fourth Proportional to 15,343.02, 21,170.16 and 9,054.18

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Solution

The fourth proportional to 15,343.02, 21,170.16 and 9,054.18 is: 12,492.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,343.02 : 21,170.16 = 9,054.18 : x
  2. Step 2: Convert to fraction form
    15,343.02/21,170.16 = 9,054.18/x
  3. Step 3: Cross multiply
    15,343.02x = 21,170.16 × 9,054.18
  4. Step 4: Simplify right side
    15,343.02x = 191,678,439.27
  5. Step 5: Solve for x
    x = 191,678,439.27/15,343.02
  6. Step 6: Final answer
    x = 12,492.88

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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.