Home / 14,178.51-19,563.53-7,889.67

Finding the Fourth Proportional to 14,178.51, 19,563.53 and 7,889.67

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Solution

The fourth proportional to 14,178.51, 19,563.53 and 7,889.67 is: 10,886.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,178.51 : 19,563.53 = 7,889.67 : x
  2. Step 2: Convert to fraction form
    14,178.51/19,563.53 = 7,889.67/x
  3. Step 3: Cross multiply
    14,178.51x = 19,563.53 × 7,889.67
  4. Step 4: Simplify right side
    14,178.51x = 154,349,756.29
  5. Step 5: Solve for x
    x = 154,349,756.29/14,178.51
  6. Step 6: Final answer
    x = 10,886.18

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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.