Home / 12,398.95-18,598.52-4,607.75

Finding the Fourth Proportional to 12,398.95, 18,598.52 and 4,607.75

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Solution

The fourth proportional to 12,398.95, 18,598.52 and 4,607.75 is: 6,911.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,398.95 : 18,598.52 = 4,607.75 : x
  2. Step 2: Convert to fraction form
    12,398.95/18,598.52 = 4,607.75/x
  3. Step 3: Cross multiply
    12,398.95x = 18,598.52 × 4,607.75
  4. Step 4: Simplify right side
    12,398.95x = 85,697,307.49
  5. Step 5: Solve for x
    x = 85,697,307.49/12,398.95
  6. Step 6: Final answer
    x = 6,911.66

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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.