Home / 15,533.34-21,436.02-8,459.70

Finding the Fourth Proportional to 15,533.34, 21,436.02 and 8,459.70

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Solution

The fourth proportional to 15,533.34, 21,436.02 and 8,459.70 is: 11,674.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,533.34 : 21,436.02 = 8,459.70 : x
  2. Step 2: Convert to fraction form
    15,533.34/21,436.02 = 8,459.70/x
  3. Step 3: Cross multiply
    15,533.34x = 21,436.02 × 8,459.70
  4. Step 4: Simplify right side
    15,533.34x = 181,342,298.39
  5. Step 5: Solve for x
    x = 181,342,298.39/15,533.34
  6. Step 6: Final answer
    x = 11,674.39

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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.