Home / 14,889.32-20,549.40-8,921.24

Finding the Fourth Proportional to 14,889.32, 20,549.40 and 8,921.24

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Solution

The fourth proportional to 14,889.32, 20,549.40 and 8,921.24 is: 12,312.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,889.32 : 20,549.40 = 8,921.24 : x
  2. Step 2: Convert to fraction form
    14,889.32/20,549.40 = 8,921.24/x
  3. Step 3: Cross multiply
    14,889.32x = 20,549.40 × 8,921.24
  4. Step 4: Simplify right side
    14,889.32x = 183,326,129.26
  5. Step 5: Solve for x
    x = 183,326,129.26/14,889.32
  6. Step 6: Final answer
    x = 12,312.59

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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.