Home / 13,009.99-19,508.91-4,688.91

Finding the Fourth Proportional to 13,009.99, 19,508.91 and 4,688.91

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Solution

The fourth proportional to 13,009.99, 19,508.91 and 4,688.91 is: 7,031.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,009.99 : 19,508.91 = 4,688.91 : x
  2. Step 2: Convert to fraction form
    13,009.99/19,508.91 = 4,688.91/x
  3. Step 3: Cross multiply
    13,009.99x = 19,508.91 × 4,688.91
  4. Step 4: Simplify right side
    13,009.99x = 91,475,578.76
  5. Step 5: Solve for x
    x = 91,475,578.76/13,009.99
  6. Step 6: Final answer
    x = 7,031.18

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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.