Home / 15,373.29-21,216.74-9,408.93

Finding the Fourth Proportional to 15,373.29, 21,216.74 and 9,408.93

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Solution

The fourth proportional to 15,373.29, 21,216.74 and 9,408.93 is: 12,985.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,373.29 : 21,216.74 = 9,408.93 : x
  2. Step 2: Convert to fraction form
    15,373.29/21,216.74 = 9,408.93/x
  3. Step 3: Cross multiply
    15,373.29x = 21,216.74 × 9,408.93
  4. Step 4: Simplify right side
    15,373.29x = 199,626,774.44
  5. Step 5: Solve for x
    x = 199,626,774.44/15,373.29
  6. Step 6: Final answer
    x = 12,985.30

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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.