Home / 15,482.08-21,364.91-8,408.35

Finding the Fourth Proportional to 15,482.08, 21,364.91 and 8,408.35

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Solution

The fourth proportional to 15,482.08, 21,364.91 and 8,408.35 is: 11,603.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,482.08 : 21,364.91 = 8,408.35 : x
  2. Step 2: Convert to fraction form
    15,482.08/21,364.91 = 8,408.35/x
  3. Step 3: Cross multiply
    15,482.08x = 21,364.91 × 8,408.35
  4. Step 4: Simplify right side
    15,482.08x = 179,643,534.17
  5. Step 5: Solve for x
    x = 179,643,534.17/15,482.08
  6. Step 6: Final answer
    x = 11,603.32

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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.