Home / 10,709.19-14,785.16-6,989.67

Finding the Fourth Proportional to 10,709.19, 14,785.16 and 6,989.67

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Solution

The fourth proportional to 10,709.19, 14,785.16 and 6,989.67 is: 9,649.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,709.19 : 14,785.16 = 6,989.67 : x
  2. Step 2: Convert to fraction form
    10,709.19/14,785.16 = 6,989.67/x
  3. Step 3: Cross multiply
    10,709.19x = 14,785.16 × 6,989.67
  4. Step 4: Simplify right side
    10,709.19x = 103,343,389.30
  5. Step 5: Solve for x
    x = 103,343,389.30/10,709.19
  6. Step 6: Final answer
    x = 9,649.97

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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.