Home / 14,001.12-19,316.64-9,290.40

Finding the Fourth Proportional to 14,001.12, 19,316.64 and 9,290.40

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Solution

The fourth proportional to 14,001.12, 19,316.64 and 9,290.40 is: 12,817.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,001.12 : 19,316.64 = 9,290.40 : x
  2. Step 2: Convert to fraction form
    14,001.12/19,316.64 = 9,290.40/x
  3. Step 3: Cross multiply
    14,001.12x = 19,316.64 × 9,290.40
  4. Step 4: Simplify right side
    14,001.12x = 179,459,312.26
  5. Step 5: Solve for x
    x = 179,459,312.26/14,001.12
  6. Step 6: Final answer
    x = 12,817.50

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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.