Home / 14,307.16-21,459.80-4,945

Finding the Fourth Proportional to 14,307.16, 21,459.80 and 4,945

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Solution

The fourth proportional to 14,307.16, 21,459.80 and 4,945 is: 7,417.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,307.16 : 21,459.80 = 4,945 : x
  2. Step 2: Convert to fraction form
    14,307.16/21,459.80 = 4,945/x
  3. Step 3: Cross multiply
    14,307.16x = 21,459.80 × 4,945
  4. Step 4: Simplify right side
    14,307.16x = 106,118,711
  5. Step 5: Solve for x
    x = 106,118,711/14,307.16
  6. Step 6: Final answer
    x = 7,417.18

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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.