Home / 15,715.02-21,685.44-9,253.63

Finding the Fourth Proportional to 15,715.02, 21,685.44 and 9,253.63

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Solution

The fourth proportional to 15,715.02, 21,685.44 and 9,253.63 is: 12,769.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,715.02 : 21,685.44 = 9,253.63 : x
  2. Step 2: Convert to fraction form
    15,715.02/21,685.44 = 9,253.63/x
  3. Step 3: Cross multiply
    15,715.02x = 21,685.44 × 9,253.63
  4. Step 4: Simplify right side
    15,715.02x = 200,669,038.15
  5. Step 5: Solve for x
    x = 200,669,038.15/15,715.02
  6. Step 6: Final answer
    x = 12,769.25

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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.