Home / 10,389.52-14,335.86-5,913.35

Finding the Fourth Proportional to 10,389.52, 14,335.86 and 5,913.35

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Solution

The fourth proportional to 10,389.52, 14,335.86 and 5,913.35 is: 8,159.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,389.52 : 14,335.86 = 5,913.35 : x
  2. Step 2: Convert to fraction form
    10,389.52/14,335.86 = 5,913.35/x
  3. Step 3: Cross multiply
    10,389.52x = 14,335.86 × 5,913.35
  4. Step 4: Simplify right side
    10,389.52x = 84,772,886.05
  5. Step 5: Solve for x
    x = 84,772,886.05/10,389.52
  6. Step 6: Final answer
    x = 8,159.46

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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.