Home / 15,312.80-21,130.02-8,599.16

Finding the Fourth Proportional to 15,312.80, 21,130.02 and 8,599.16

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Solution

The fourth proportional to 15,312.80, 21,130.02 and 8,599.16 is: 11,865.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312.80 : 21,130.02 = 8,599.16 : x
  2. Step 2: Convert to fraction form
    15,312.80/21,130.02 = 8,599.16/x
  3. Step 3: Cross multiply
    15,312.80x = 21,130.02 × 8,599.16
  4. Step 4: Simplify right side
    15,312.80x = 181,700,422.78
  5. Step 5: Solve for x
    x = 181,700,422.78/15,312.80
  6. Step 6: Final answer
    x = 11,865.92

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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.