Home / 13,365.59-18,444.05-7,397.51

Finding the Fourth Proportional to 13,365.59, 18,444.05 and 7,397.51

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Solution

The fourth proportional to 13,365.59, 18,444.05 and 7,397.51 is: 10,208.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,365.59 : 18,444.05 = 7,397.51 : x
  2. Step 2: Convert to fraction form
    13,365.59/18,444.05 = 7,397.51/x
  3. Step 3: Cross multiply
    13,365.59x = 18,444.05 × 7,397.51
  4. Step 4: Simplify right side
    13,365.59x = 136,439,915.11
  5. Step 5: Solve for x
    x = 136,439,915.11/13,365.59
  6. Step 6: Final answer
    x = 10,208.30

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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.