Home / 14,690.72-20,264.24-8,718.40

Finding the Fourth Proportional to 14,690.72, 20,264.24 and 8,718.40

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Solution

The fourth proportional to 14,690.72, 20,264.24 and 8,718.40 is: 12,026.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,690.72 : 20,264.24 = 8,718.40 : x
  2. Step 2: Convert to fraction form
    14,690.72/20,264.24 = 8,718.40/x
  3. Step 3: Cross multiply
    14,690.72x = 20,264.24 × 8,718.40
  4. Step 4: Simplify right side
    14,690.72x = 176,671,750.02
  5. Step 5: Solve for x
    x = 176,671,750.02/14,690.72
  6. Step 6: Final answer
    x = 12,026.08

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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.