Home / 13,325.52-18,389.51-7,357.57

Finding the Fourth Proportional to 13,325.52, 18,389.51 and 7,357.57

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Solution

The fourth proportional to 13,325.52, 18,389.51 and 7,357.57 is: 10,153.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325.52 : 18,389.51 = 7,357.57 : x
  2. Step 2: Convert to fraction form
    13,325.52/18,389.51 = 7,357.57/x
  3. Step 3: Cross multiply
    13,325.52x = 18,389.51 × 7,357.57
  4. Step 4: Simplify right side
    13,325.52x = 135,302,031.23
  5. Step 5: Solve for x
    x = 135,302,031.23/13,325.52
  6. Step 6: Final answer
    x = 10,153.60

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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.