Home / 13,957.61-19,259.52-7,988.00

Finding the Fourth Proportional to 13,957.61, 19,259.52 and 7,988.00

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Solution

The fourth proportional to 13,957.61, 19,259.52 and 7,988.00 is: 11,022.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,957.61 : 19,259.52 = 7,988.00 : x
  2. Step 2: Convert to fraction form
    13,957.61/19,259.52 = 7,988.00/x
  3. Step 3: Cross multiply
    13,957.61x = 19,259.52 × 7,988.00
  4. Step 4: Simplify right side
    13,957.61x = 153,844,949.46
  5. Step 5: Solve for x
    x = 153,844,949.46/13,957.61
  6. Step 6: Final answer
    x = 11,022.30

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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.