Home / 14,018.56-19,345.76-7,730.88

Finding the Fourth Proportional to 14,018.56, 19,345.76 and 7,730.88

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Solution

The fourth proportional to 14,018.56, 19,345.76 and 7,730.88 is: 10,668.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,018.56 : 19,345.76 = 7,730.88 : x
  2. Step 2: Convert to fraction form
    14,018.56/19,345.76 = 7,730.88/x
  3. Step 3: Cross multiply
    14,018.56x = 19,345.76 × 7,730.88
  4. Step 4: Simplify right side
    14,018.56x = 149,559,749.07
  5. Step 5: Solve for x
    x = 149,559,749.07/14,018.56
  6. Step 6: Final answer
    x = 10,668.70

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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.