Home / 10,347.93-15,528.30-5,421.10

Finding the Fourth Proportional to 10,347.93, 15,528.30 and 5,421.10

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Solution

The fourth proportional to 10,347.93, 15,528.30 and 5,421.10 is: 8,135.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,347.93 : 15,528.30 = 5,421.10 : x
  2. Step 2: Convert to fraction form
    10,347.93/15,528.30 = 5,421.10/x
  3. Step 3: Cross multiply
    10,347.93x = 15,528.30 × 5,421.10
  4. Step 4: Simplify right side
    10,347.93x = 84,180,467.13
  5. Step 5: Solve for x
    x = 84,180,467.13/10,347.93
  6. Step 6: Final answer
    x = 8,135.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.