Home / 14,130.02-21,167.69-12,681.13

Finding the Fourth Proportional to 14,130.02, 21,167.69 and 12,681.13

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Solution

The fourth proportional to 14,130.02, 21,167.69 and 12,681.13 is: 18,997.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,130.02 : 21,167.69 = 12,681.13 : x
  2. Step 2: Convert to fraction form
    14,130.02/21,167.69 = 12,681.13/x
  3. Step 3: Cross multiply
    14,130.02x = 21,167.69 × 12,681.13
  4. Step 4: Simplify right side
    14,130.02x = 268,430,228.69
  5. Step 5: Solve for x
    x = 268,430,228.69/14,130.02
  6. Step 6: Final answer
    x = 18,997.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.