Home / 14,407.02-19,870.15-9,929.74

Finding the Fourth Proportional to 14,407.02, 19,870.15 and 9,929.74

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Solution

The fourth proportional to 14,407.02, 19,870.15 and 9,929.74 is: 13,695.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,407.02 : 19,870.15 = 9,929.74 : x
  2. Step 2: Convert to fraction form
    14,407.02/19,870.15 = 9,929.74/x
  3. Step 3: Cross multiply
    14,407.02x = 19,870.15 × 9,929.74
  4. Step 4: Simplify right side
    14,407.02x = 197,305,423.26
  5. Step 5: Solve for x
    x = 197,305,423.26/14,407.02
  6. Step 6: Final answer
    x = 13,695.09

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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.